Superconducting magnet cooling control device

Abstract

The invention relates to the technical field of superconducting magnet cooling, and discloses a superconducting magnet cooling control device, which comprises a vacuum cylinder, a mounting cylinder frame, a superconducting coil and a cooling pipe fitting, and is characterized in that the mounting cylinder frame is arranged in an annular vacuum cavity, and a mounting groove with an embedded section and an exposed section is formed in the mounting cylinder frame; the second cooling pipe can be arranged in the mounting groove, the first cooling pipe is arranged between the outer circumferential surface of the mounting cylinder frame and the annular vacuum cavity, and when cooling liquid in the second cooling pipe exchanges heat, the cooling liquid flowing through the exposed section can be cooled by the first cooling pipe again, so that it is ensured that the mounting cylinder frame can uniformly cool the superconducting coil, and the superconducting coil cooling efficiency is improved. The cooling performance is good.

Description

Technical Field

[0001] The invention relates to the technical field of superconducting magnet cooling, and in particular to a superconducting magnet cooling control device. Background Art

[0002] Superconducting magnets are the core components of nuclear magnetic resonance imaging equipment. Superconducting magnets refer to an electromagnet with a coil made of a second-class superconductor with a high transition temperature and a particularly high critical magnetic field at low temperature. Superconducting magnets are widely used in industry and scientific research. Superconducting magnets need to work at liquid helium temperatures. The low liquid helium cooling technology of superconducting magnets refers to the technology of cooling the superconducting winding coils through the helium pipeline installed on the superconducting winding skeleton. Usually, the helium is first liquefied by a refrigerator, and the liquid helium enters the cooling cycle through the siphon effect. The helium pipeline installed on the superconducting winding skeleton is cooled to less than 5K through a heat exchanger, thereby achieving the purpose of cooling the superconducting winding coils.

[0003] The prior art discloses a superconducting magnet cooling system, including a Dewar vacuum cylinder, a mounting frame arranged in the Dewar vacuum cylinder, and a superconducting coil wound around the circumferential end of the mounting frame, wherein a cooling pipe is reserved in the mounting frame, and a spiral embedding groove is coaxially opened on the outer peripheral side wall of the mounting frame, a cooling copper pipe is buried in the embedding groove, and the superconducting coil is partially aligned with and abuts against the cooling copper pipe. The prior art has the problem that the cooling pipe is arranged in the mounting frame, and when the coolant flows in the cooling pipe, the heat absorption effect of the coolant will gradually decrease as it flows, thereby causing the non-uniformity of the coolant temperature, reducing the cooling effect, and at the same time, the mounting frame is inconvenient to install the cooling pipe. Summary of the invention

[0004] The object of the present invention is to provide a superconducting magnet cooling control device, so as to achieve the effect that the mounting barrel rack can evenly cool the superconducting coil and has good cooling performance.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a superconducting magnet cooling control device, comprising: a vacuum cylinder, a mounting cylinder frame, a superconducting coil and a cooling pipe fitting, wherein the vacuum cylinder comprises a channel and an annular vacuum chamber, wherein the channel extends along the axial direction of the vacuum cylinder and penetrates the vacuum cylinder, wherein the annular vacuum chamber is coaxially arranged with the channel, wherein the mounting cylinder frame is coaxially arranged in the annular vacuum chamber, wherein the superconducting coil is coaxially wound on the outer circumferential surface of the mounting cylinder frame, wherein the mounting cylinder frame is provided with mounting grooves distributed at equal intervals along the axial direction thereof, wherein the mounting groove comprises an embedded section located in the mounting cylinder frame and an exposed section located on the outer circumference of the mounting cylinder frame, wherein the cooling pipe fitting comprises a first cooling pipe surrounding the outer side of the superconducting coil and a second cooling pipe embedded in the mounting groove, wherein the first cooling pipe and the second cooling pipe are connected and the first cooling pipe is provided with a liquid inlet and a liquid outlet, wherein the liquid inlet is used for injecting coolant, and the liquid outlet is used for discharging coolant.

[0006] Preferably, the mounting cartridge frame comprises a fixing ring, the fixing ring being coaxially abuttingly arranged in the annular vacuum chamber, the mounting groove being arranged on both sides of the fixing ring, the exposed section being circumferentially distributed on the outer circumferential surface of the fixing ring, the buried section being circumferentially distributed in the fixing ring, the fixing ring being further provided with a connecting section for connecting the exposed section and the buried section, the second cooling pipe having a first interface and a second interface, the second cooling pipe extending in the exposed section and the buried section, the first interface and the second interface extending to the outside of the fixing ring and being connected with the first cooling pipe.

[0007] Preferably, the first cooling pipe includes a first arc tube and a second arc tube, the first arc tube and the second arc tube are coaxially arranged on the outside of the fixing ring, one end of the first arc tube is connected to the first interface, and one end of the second arc tube is connected to the second interface, and the coolant enters the second cooling pipe from the other end of the first arc tube and is discharged through the second arc tube.

[0008] Preferably, the cooling pipe fitting also includes a shunt pipe and a confluence pipe, which are arranged in parallel in the annular vacuum chamber, and extend along the axial direction of the mounting tube rack. The shunt pipe has a liquid inlet pipe extending along its radial direction and passing through the annular vacuum chamber, and shunt ports distributed at equal intervals along its axial direction, and the shunt port is connected to the first arc tube. The confluence pipe has a liquid outlet pipe extending along its radial direction and passing through the annular vacuum chamber, and confluence ports distributed at equal intervals along its axial direction, and the confluence port is connected to the second arc tube.

[0009] Preferably, it also includes a first rotating cylinder, a second rotating cylinder and a driving mechanism, the first rotating cylinder and the second rotating cylinder are coaxially rotatably arranged in the annular vacuum chamber, the inner circumferential surfaces of the first rotating cylinder and the second rotating cylinder are provided with blades extending along the radial direction thereof, the first rotating cylinder and the second rotating cylinder are located on both sides of the liquid inlet pipe and the liquid outlet pipe, the driving mechanism is arranged outside the vacuum cylinder, and the driving end of the driving mechanism extends into the annular vacuum chamber, and the driving end of the driving mechanism is transmission-connected to the first rotating cylinder and the second rotating cylinder.

[0010] Preferably, a first bevel gear ring is provided at one end of the first rotating cylinder facing the second rotating cylinder, and a second bevel gear ring is provided at one end of the second rotating cylinder facing the first rotating cylinder. The driving mechanism includes a motor and a bevel gear. The motor is provided on the outside of the vacuum cylinder, and the output shaft of the motor extends into the vacuum cylinder and is connected to the bevel gear. The first bevel gear ring and the second bevel gear ring are both meshed with the bevel gear.

[0011] Preferably, it also includes an abutment ring, a connecting rod and a nut, the inner side of the annular vacuum chamber is provided with a symmetrical annular step groove, the abutment ring is coaxially arranged on the annular step groove, the connecting rod passes through the fixing ring and the abutment ring, there are multiple nuts, and the nuts are threadedly connected to both ends of the connecting rod and abut against the end surface of the abutment ring, the inner end of the abutment ring is provided with a positioning cylinder coaxial therewith, and the positioning cylinders on both sides are coaxially rotatably connected to the first rotating cylinder and the second rotating cylinder respectively.

[0012] Preferably, the vacuum cylinder comprises an inner cylinder, an outer cylinder and a connecting ring, the outer cylinder is coaxially arranged on the outside of the inner cylinder, the connecting ring is coaxially arranged at both ends of the inner cylinder and the outer cylinder, and the mounting cylinder frame, superconducting coil and cooling pipe are all arranged between the inner cylinder and the outer cylinder.

[0013] Preferably, the superconducting coils coaxially wound on the outer circumferential surface of the mounting barrel are filled with annular rubber strips between the coils, and the outer side of the superconducting coils is also wrapped with Teflon cloth.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges the mounting tube frame in the annular vacuum chamber, and opens an installation groove with an embedded section and an exposed section in the mounting tube frame, so that the second cooling tube can be arranged in the installation groove, and the first cooling tube is arranged between the outer circumferential surface of the mounting tube frame and the annular vacuum chamber. When the coolant in the second cooling tube exchanges heat, the coolant flowing through the exposed section can be re-cooled by the first cooling tube, thereby ensuring that the mounting tube frame can evenly cool the superconducting coil and has good cooling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of a superconducting magnet cooling control device according to an embodiment of the present invention; Figure 2 is a three-dimensional cross-sectional view of a superconducting magnet cooling control device according to an embodiment of the present invention; Figure 3 is a three-dimensional cross-sectional view of the superconducting magnet cooling control device according to an embodiment of the present invention from another angle; Figure 4 is a partial enlarged view of location A of the superconducting magnet cooling control device according to an embodiment of the present invention; Figure 5 is a partial enlarged view of position B of the superconducting magnet cooling control device according to an embodiment of the present invention; Figure 6 is a schematic diagram of the internal structure of a superconducting magnet cooling control device according to an embodiment of the present invention; Figure 7 is a three-dimensional exploded view of the internal structure of the superconducting magnet cooling control device according to an embodiment of the present invention; Figure 8 1 is a schematic diagram of the three-dimensional structure of a cooling pipe member of a superconducting magnet cooling control device according to an embodiment of the present invention; Fig. 9 is a three-dimensional diagram of a mounting barrel frame of a superconducting magnet cooling control device according to an embodiment of the present invention; Fig.10 It is a partial three-dimensional exploded view of a mounting cylinder frame of a superconducting magnet cooling control device according to an embodiment of the present invention.

[0016] In the figure, 1, vacuum cylinder; 11, channel; 12, inner cylinder; 13, outer cylinder; 14, connecting ring; 2, mounting cylinder frame; 21, fixing ring; 211, buried section; 212, exposed section; 213, connecting section; 3, superconducting coil; 31, annular rubber strip; 32, Teflon cloth; 41, first cooling tube; 411, first arc tube; 412, second arc tube; 42, second cooling tube; 421, first interface; 42 2. Second interface; 43. Liquid inlet; 44. Liquid outlet; 45. Diverter pipe; 451. Liquid inlet pipe; 46. Converging pipe; 461. Liquid outlet pipe; 51. First rotating cylinder; 511. First bevel gear ring; 512. Blades; 52. Second rotating cylinder; 521. Second bevel gear ring; 531. Motor; 532. Bevel gear; 61. Abutment ring; 611. Positioning cylinder; 62. Connecting rod; 63. Nut; 64. Gasket. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0021] Embodiment 1 like Figure 1-Figure 3 As shown, a superconducting magnet cooling control device according to a preferred embodiment of the present invention comprises: a vacuum cylinder 1, a mounting cylinder frame 2, a superconducting coil 3 and a cooling pipe fitting, wherein the vacuum cylinder 1 comprises a channel 11 and an annular vacuum chamber, wherein the channel 11 extends along the axial direction of the vacuum cylinder 1 and penetrates the vacuum cylinder 1, wherein the annular vacuum chamber is coaxially arranged with the channel 11, wherein the mounting cylinder frame 2 is coaxially arranged in the annular vacuum chamber, wherein the superconducting coil 3 is coaxially wound on the outer circumferential surface of the mounting cylinder frame 2, wherein the mounting cylinder frame 2 is provided with mounting grooves which are distributed at equal intervals along the axial direction thereof, wherein the mounting groove comprises an embedded section 211 located in the mounting cylinder frame 2 and an exposed section 212 located on the outer circumference of the mounting cylinder frame 2, wherein the cooling pipe fitting comprises a first cooling pipe 41 surrounding the outer side of the superconducting coil 3 and a second cooling pipe 42 embedded in the mounting groove, wherein the first cooling pipe 41 and the second cooling pipe 42 are connected, and wherein the first cooling pipe 41 is provided with a liquid inlet 43 and a liquid outlet 44, wherein the liquid inlet 43 is used for injecting coolant, and the liquid outlet 44 is used for discharging coolant.

[0022] The mounting tube frame 2 is arranged in the annular vacuum chamber of the vacuum tube 1, and the superconducting coil 3 is coaxially wound on the outer circumference of the mounting tube frame 2. The annular vacuum chamber can reduce the temperature of the superconducting coil 3 from dissipating outward. Before starting the superconducting coil 3, the coolant is injected into the first cooling tube 41 and the second cooling tube 42 through the liquid inlet 43. The coolant flows in the first cooling tube 41 and the second cooling tube 42 and then is discharged outward through the liquid outlet 44, and then flows in through the liquid inlet 43, thereby forming a reflux flow, and then continuously cooling. At the same time, because the second cooling tube 42 is arranged on the outside of the mounting tube frame 2, The first cooling tubes 41 are distributed at equal intervals rather than in a spiral distribution, so that the temperature between the outer circumference of the mounting tube frame 2 and the annular vacuum chamber can be stably reduced. At the same time, the second cooling tube 42 is arranged in the mounting tube frame 2, and the second cooling tube 42 has an exposed section 212, so that the second cooling tube 42 located in the buried section 211 can uniformly cool the interior of the mounting tube frame 2, and the second cooling tube 42 located in the buried section 211 can be cooled by the first cooling tube 41, so that the cooling uniformity of the second cooling tube 42 on the mounting tube frame 2 can be improved, thereby improving the cooling efficiency of the superconducting coil 3.

[0023] In this embodiment, the mounting tube frame 2 is arranged in the annular vacuum chamber. By opening an installation groove with a buried section 211 and an exposed section 212 in the mounting tube frame 2, the second cooling tube 42 can be arranged in the installation groove, and the first cooling tube 41 is arranged between the outer circumferential surface of the mounting tube frame 2 and the annular vacuum chamber. When the coolant in the second cooling tube 42 exchanges heat, the coolant flowing through the exposed section 212 can be re-cooled by the first cooling tube 41, thereby ensuring that the mounting tube frame 2 can evenly cool the superconducting coil 3, solving the problem in the existing cooling system that the temperature of the coolant increases as the flow path increases.

[0024] Embodiment 2 This embodiment is different from the first embodiment in that Figure 3 , Figure 7 , Figure 8 and Fig. 9 As shown, the mounting cartridge frame 2 includes a fixing ring 21, which is coaxially abutted in an annular vacuum chamber, mounting grooves are provided on both sides of the fixing ring 21, exposed sections 212 are circumferentially distributed on the outer circumferential surface of the fixing ring 21, and buried sections 211 are circumferentially distributed in the fixing ring 21, and a connecting section 213 for connecting the exposed section 212 and the buried section 211 is also provided on the fixing ring 21, and the second cooling pipe 42 has a first interface 421 and a second interface 422, and the second cooling pipe 42 extends in the exposed section 212 and the buried section 211, and the first interface 421 and the second interface 422 extend to the outside of the fixing ring 21 and are connected to the first cooling pipe 41.

[0025] Because the cooling pipe fitting needs to be set in the mounting tube frame 2, a plurality of fixing rings 21 are used to form a mounting pipe fitting coaxially set on the annular vacuum chamber, and mounting grooves are opened at both ends of the fixing rings 21, so that the mounting grooves on adjacent fixing rings 21 can form a mounting channel 11 for accommodating the second cooling pipe 42, thereby facilitating the installation of the second cooling pipe 42. At the same time, the first interface 421 and the second interface 422 of the second cooling pipe 42 are both connected to the first cooling pipe 41, so that the coolant in the first cooling pipe 41 can flow through the second cooling pipe 42, and at the same time, the first cooling pipe 41 can cool the second cooling pipe 42 in the exposed section 212.

[0026] like Figure 7 and Figure 8 As shown, the first cooling pipe 41 includes a first arc tube 411 and a second arc tube 412. The first arc tube 411 and the second arc tube 412 are coaxially arranged on the outside of the fixing ring 21. One end of the first arc tube 411 is connected to the first interface 421, and one end of the second arc tube 412 is connected to the second interface 422. The coolant enters the second cooling pipe 42 from the other end of the first arc tube 411 and is discharged through the second arc tube 412.

[0027] By arranging the first arc tube and the second arc tube on the outside of the fixing ring 21, one end of the first arc tube is connected to the first interface 421 of the second cooling tube 42, and one end of the second arc tube is connected to the second interface 422 of the second cooling tube 42, the coolant is injected through the liquid inlet 43, and the coolant passes through the first arc tube 41, the second cooling tube 42 and the second arc tube 42 in sequence and then is discharged through the liquid outlet 44. In this process, the coolant in the first arc tube 41 and the second arc tube 42 can cool the second cooling tube 42 in the exposed section 212, and the second cooling tube 42 in the mounting barrel frame 2 can uniformly cool the mounting barrel frame 2, thereby uniformly cooling the superconducting coil 3.

[0028] like Figure 8 As shown, the cooling pipe also includes a shunt pipe 45 and a confluence pipe 46, which are arranged in parallel in the annular vacuum chamber, and the shunt pipe 45 and the confluence pipe 46 extend along the axial direction of the mounting cartridge rack 2. The shunt pipe 45 has a liquid inlet pipe 451 extending along its radial direction and penetrating the annular vacuum chamber, and shunt ports equidistantly distributed along its axial direction, and the shunt ports are connected to the first arc-shaped pipe 411. The confluence pipe 46 has a liquid outlet pipe 461 extending along its radial direction and penetrating the annular vacuum chamber, and confluence ports equidistantly distributed along its axial direction, and the confluence ports are connected to the second arc-shaped pipe 412.

[0029] Because a group of first arc tubes 41 and second arc tubes 42 are connected to a second cooling tube 42, when injecting coolant into a group of first arc tubes 41 and second arc tubes 42 separately, multiple coolant reflux devices are required. Therefore, by arranging the diverter tube 45 and the confluence tube 46 in the annular vacuum chamber, it is only necessary to inject coolant into the diverter tube 45, so that multiple first arc tubes 41 are connected to the diverter tube 45, and multiple second arc tubes 42 are connected to the confluence tube 46, so that the coolant can circulate between multiple groups of first arc tubes 41, second cooling tubes 42 and second arc tubes 42.

[0030] The rest of the structure of this embodiment is the same as that of the first embodiment and will not be described in detail here.

[0031] Embodiment 3 The difference between this embodiment and the second embodiment is that Figure 4 and Figure 6 As shown, this embodiment also includes a first rotating cylinder 51, a second rotating cylinder 52 and a driving mechanism. The first rotating cylinder 51 and the second rotating cylinder 52 are coaxially rotatably arranged in the annular vacuum chamber. The inner circumferential surfaces of the first rotating cylinder 51 and the second rotating cylinder 52 are provided with blades 512 extending along their radial directions. The first rotating cylinder 51 and the second rotating cylinder 52 are located on both sides of the liquid inlet pipe 451 and the liquid outlet pipe 461. The driving mechanism is arranged outside the vacuum cylinder 1, and the driving end of the driving mechanism extends into the annular vacuum chamber. The driving end of the driving mechanism is transmission-connected to the first rotating cylinder 51 and the second rotating cylinder 52.

[0032] The present invention arranges the first rotating cylinder 51 and the second rotating cylinder 52 coaxially and rotatably in the annular vacuum chamber, so that after the driving mechanism is started, the actuator of the driving mechanism can drive the first rotating cylinder 51 and the second rotating cylinder 52 to rotate in the annular vacuum chamber, and the inner circumferential surfaces of the first rotating cylinder 51 and the second rotating cylinder 52 are both provided with blades 512 extending along their radial directions, so that the blades 512 rotating relative to the annular vacuum chamber will disturb the heat in the annular vacuum chamber, so that the heat can be evenly absorbed by the first cooling tube 41, thereby improving the cooling efficiency.

[0033] like Figure 4 As shown, a first bevel gear ring 511 is provided at one end of the first rotating cylinder 51 facing the second rotating cylinder 52, and a second bevel gear ring 521 is provided at one end of the second rotating cylinder 52 facing the first rotating cylinder 51. The driving mechanism includes a motor 531 and a bevel gear 532. The motor 531 is provided on the outside of the vacuum cylinder 1, and the output shaft of the motor 531 extends into the vacuum cylinder 1 and is connected to the bevel gear 532. The first bevel gear ring 511 and the second bevel gear ring 521 are both engaged with the bevel gear 532.

[0034] After starting the motor 531, the output shaft of the motor 531 drives the bevel gear 532 to rotate in the annular vacuum chamber, and the first bevel gear ring 511 and the second bevel gear ring 521 are both engaged with the bevel gear 532, so that the bevel gear 532 can drive the first bevel gear ring 511 and the second bevel gear ring 521 to rotate, and the rotation of the first bevel gear ring 511 and the second bevel gear ring 521 can respectively drive the first rotating cylinder 51 and the second rotating cylinder 52 to rotate in the annular vacuum chamber.

[0035] The rest of the structure of this embodiment is the same as that of the second embodiment and will not be described in detail here.

[0036] Embodiment 4 The difference between this embodiment and the third embodiment is that Fig.10 As shown, this embodiment also includes an abutment ring 61, a connecting rod 62 and a nut 63. A symmetrical annular step groove is provided on the inner side of the annular vacuum chamber. The abutment ring 61 is coaxially arranged on the annular step groove. The connecting rod 62 passes through the fixing ring 21 and the abutment ring 61. There are multiple nuts 63, and the nuts 63 are threadedly connected to both ends of the connecting rod 62 and abut against the end surface of the abutment ring 61. A coaxial positioning cylinder 611 is provided at the inner end of the abutment ring 61. The positioning cylinders 611 on both sides are coaxially rotatably connected to the first rotating cylinder 51 and the second rotating cylinder 52 respectively.

[0037] By setting the abutment ring 61 on the annular step groove, several fixing rings 21 can be set in the annular vacuum chamber to abut against each other, and the two abutment rings 61 can abut against the two ends of the fixing ring 21 group. After the connecting rod 62 passes through the abutment ring 61 and the fixing ring 21, the two ends of the connecting ring 14 are fixed to the abutment ring 61 by the nut 63, so as to prevent the fixing ring 21 from sliding in the annular vacuum chamber, thereby improving the stability of the equipment.

[0038] In addition, a gasket ring 64 is provided between the outer side of the abutment ring 61 and the annular vacuum chamber, and the gasket ring 64 can prevent the abutment ring 61 from sliding on the annular stepped groove.

[0039] like Figure 2 As shown, the vacuum cylinder 1 includes an inner cylinder 12, an outer cylinder 13 and a connecting ring 14. The outer cylinder 13 is coaxially arranged on the outside of the inner cylinder 12. The connecting ring 14 is coaxially arranged at both ends of the inner cylinder 12 and the outer cylinder 13. The mounting cylinder frame 2, the superconducting coil 3 and the cooling pipe are all arranged between the inner cylinder 12 and the outer cylinder 13.

[0040] The outer cylinder 13 is arranged outside the inner cylinder 12 through the connecting ring 14, so that an annular vacuum chamber for arranging and installing the cylinder frame 2, the superconducting coil 3 and the cooling pipe can be formed between the outer circumferential surface of the inner cylinder 12 and the inner circumferential surface of the outer cylinder 13.

[0041] like Figure 5As shown, the superconducting coil 3 coaxially wound on the outer circumferential surface of the mounting barrel 2 has an annular rubber strip 31 filled between the coils, and the outer side of the superconducting coil 3 is wrapped with Teflon cloth 32.

[0042] The annular rubber strip 31 and the Teflon cloth 32 can prevent the superconducting coil 3 from sliding in the annular vacuum chamber and causing changes in the magnetic field.

[0043] The rest of the structure of this embodiment is the same as that of the third embodiment and will not be described in detail here.

[0044] Embodiment 5 This embodiment is a superconducting magnet cooling control method of a superconducting magnet cooling control device, comprising the following steps: injecting cooling liquid into the cooling pipe through the liquid inlet 43, and the cooling liquid forms a loop flow in the first cooling pipe 41 and the second cooling pipe 42 and then is discharged to the outside through the liquid outlet 44.

[0045] In summary, an embodiment of the present invention provides a superconducting magnet cooling control device and method, which sets a mounting tube frame in an annular vacuum chamber, and opens a mounting groove with a buried section and an exposed section in the mounting tube frame, so that a second cooling tube can be set in the mounting groove, and the first cooling tube is set between the outer circumferential surface of the mounting tube frame and the annular vacuum chamber. During heat exchange, the coolant in the second cooling tube that flows through the exposed section can be re-cooled by the first cooling tube, thereby ensuring that the mounting tube frame can evenly cool the superconducting coil and has good cooling performance.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A superconducting magnet cooling control device, characterized in that: include: A vacuum cylinder (1), a mounting cylinder frame (2), a superconducting coil (3) and a cooling pipe, wherein the vacuum cylinder (1) comprises a channel (11) and an annular vacuum chamber, wherein the channel (11) extends along the axial direction of the vacuum cylinder (1) and penetrates the vacuum cylinder (1), wherein the annular vacuum chamber and the channel (11) are coaxially arranged, wherein the mounting cylinder frame (2) is coaxially arranged in the annular vacuum chamber, wherein the superconducting coil (3) is coaxially wound on the outer circumferential surface of the mounting cylinder frame (2), and wherein the mounting cylinder frame (2) is provided with mounting grooves which are distributed at equal intervals along the axial direction thereof, wherein the mounting grooves include The cooling tube comprises a buried section (211) located in the installation barrel frame (2) and an exposed section (212) located on the outer circumference of the installation barrel frame (2), the cooling tube comprises a first cooling tube (41) surrounding the outer side of the superconducting coil (3) and a second cooling tube (42) buried in the installation groove, the first cooling tube (41) and the second cooling tube (42) are connected and the first cooling tube (41) is provided with a liquid inlet (43) and a liquid outlet (44), the liquid inlet (43) is used to inject cooling liquid, and the liquid outlet (44) is used to discharge cooling liquid.

2. A superconducting magnet cooling control device according to claim 1, characterized in that: The mounting cartridge frame (2) comprises a fixing ring (21), the fixing ring (21) being coaxially abuttingly arranged in the annular vacuum chamber, the mounting groove being arranged on both sides of the fixing ring (21), the exposed section (212) being circumferentially distributed on the outer circumferential surface of the fixing ring (21), the buried section (211) being circumferentially distributed inside the fixing ring (21), the fixing ring (21) being further provided with a connecting section (213) for connecting the exposed section (212) and the buried section (211), the second cooling pipe (42) having a first interface (421) and a second interface (422), the second cooling pipe (42) extending in the exposed section (212) and the buried section (211), the first interface (421) and the second interface (422) extending to the outside of the fixing ring (21) and communicating with the first cooling pipe (41).

3. A superconducting magnet cooling control device according to claim 2, characterized in that: The first cooling pipe (41) comprises a first arc-shaped pipe (411) and a second arc-shaped pipe (412); the first arc-shaped pipe (411) and the second arc-shaped pipe (412) are coaxially arranged on the outside of the fixing ring (21); one end of the first arc-shaped pipe (411) is connected to the first interface (421); one end of the second arc-shaped pipe (412) is connected to the second interface (422); and the coolant enters the second cooling pipe (42) from the other end of the first arc-shaped pipe (411) and is discharged through the second arc-shaped pipe (412).

4. A superconducting magnet cooling control device according to claim 1, characterized in that: The cooling pipe assembly further comprises a shunt pipe (45) and a converging pipe (46), wherein the shunt pipe (45) and the converging pipe (46) are arranged in parallel in the annular vacuum chamber, and the shunt pipe (45) and the converging pipe (46) extend along the axial direction of the mounting cartridge frame (2); the shunt pipe (45) comprises a liquid inlet pipe (451) extending along its radial direction and penetrating the annular vacuum chamber, and shunt ports distributed at equal intervals along its axial direction, and the shunt ports are communicated with the first arc-shaped pipe (411); the converging pipe (46) comprises a liquid outlet pipe (461) extending along its radial direction and penetrating the annular vacuum chamber, and converging ports distributed at equal intervals along its axial direction, and the converging ports are communicated with the second arc-shaped pipe (412).

5. A superconducting magnet cooling control device according to claim 4, characterized in that: The vacuum chamber further comprises a first rotating cylinder (51), a second rotating cylinder (52) and a driving mechanism, wherein the first rotating cylinder (51) and the second rotating cylinder (52) are coaxially rotatably arranged in the annular vacuum chamber, and blades (512) extending in the radial direction are arranged on the inner circumferential surfaces of the first rotating cylinder (51) and the second rotating cylinder (52), and the first rotating cylinder (51) and the second rotating cylinder (52) are located on both sides of the liquid inlet pipe (451) and the liquid outlet pipe (461), and the driving mechanism is arranged outside the vacuum cylinder (1), and the driving end of the driving mechanism extends into the annular vacuum chamber, and the driving end of the driving mechanism is drivingly connected to the first rotating cylinder (51) and the second rotating cylinder (52).

6. A superconducting magnet cooling control device according to claim 5, characterized in that: A first bevel gear ring (511) is arranged at one end of the first rotating cylinder (51) facing the second rotating cylinder (52), and a second bevel gear ring (521) is arranged at one end of the second rotating cylinder (52) facing the first rotating cylinder (51). The driving mechanism comprises a motor (531) and a bevel gear (532). The motor (531) is arranged outside the vacuum cylinder (1), and an output shaft of the motor (531) extends into the vacuum cylinder (1) and is connected to the bevel gear (532). The first bevel gear ring (511) and the second bevel gear ring (521) are both meshed with the bevel gear (532).

7. A superconducting magnet cooling control device according to claim 5, characterized in that: It also includes an abutment ring (61), a connecting rod (62) and a nut (63); a symmetrical annular stepped groove is provided on the inner side of the annular vacuum chamber; the abutment ring (61) is coaxially arranged on the annular stepped groove; the connecting rod (62) passes through the fixing ring (21) and the abutment ring (61); there are a plurality of nuts (63); the nuts (63) are threadedly connected to both ends of the connecting rod (62) and abut against the end surface of the abutment ring (61); a coaxial positioning cylinder (611) is provided at the inner end of the abutment ring (61); the positioning cylinders (611) on both sides are coaxially rotatably connected to the first rotating cylinder (51) and the second rotating cylinder (52), respectively.

8. A superconducting magnet cooling control device according to claim 7, characterized in that: A gasket ring (64) is also provided between the outer side of the abutment ring (61) and the annular vacuum chamber to prevent the abutment ring (61) from sliding on the annular stepped groove.

9. A superconducting magnet cooling control device according to any one of claims 1 to 8, characterized in that: The vacuum cylinder (1) comprises an inner cylinder (12), an outer cylinder (13) and a connecting ring (14); the outer cylinder (13) is coaxially arranged on the outside of the inner cylinder (12); the connecting ring (14) is coaxially arranged at both ends of the inner cylinder (12) and the outer cylinder (13); and the mounting cylinder frame (2), the superconducting coil (3) and the cooling pipe are all arranged between the inner cylinder (12) and the outer cylinder (13).

10. A superconducting magnet cooling control device according to claim 9, characterized in that: The superconducting coil (3) is coaxially wound on the outer circumferential surface of the mounting barrel (2), and an annular rubber strip (31) is filled between the coils. The outer side of the superconducting coil (3) is also wrapped with Teflon cloth (32).

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